People · China
Kaijun He (何铠君)
3×3 · top 7.2% of 284,439 all-time · competing since May 2016 · 2016HEKA02
Kaijun He (何铠君) has been competing for 10 years. His best event is the 3×3: a personal-best single of 9.92, set at Chongqing New Year 2025, puts him in the top 7.2% of the 284,439 people who have ever been ranked in the event, and 2,816th in China. Until May 2007, no official 3×3 solve in the world had been that fast. Across 5 competitions since May 2016, he has put 123 official solves on the record across five events. Solve to solve, his 3×3 times vary about 9% around a typical one, an early reading from 9 counted rounds. His 3×3 best has come down from 12.89 in May 2016 to 9.92, a 23% improvement. Kaijun has entered five competitions, more competitions than 83% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | China | |
|---|---|---|---|---|---|
| 3×3 | 9.92 | 12.21 | top 7.2% | 2,816 / 28,153 | |
| 4×4 | 37.08 | 43.60 | top 8.8% | 908 / 5,926 | |
| 3×3 one-handed | 17.13 | 26.00 | top 12.9% | 1,280 / 5,922 | |
| 5×5 | 1:18.33 | 1:24.53 | top 17.8% | 854 / 2,816 | |
| 2×2 | 3.99 | 5.33 | top 26.4% | 4,439 / 15,796 |
Percentile against all competitors ever ranked in each event, a fairer measure than raw rank, because the pools differ by a factor of ten.
The line so far
Best single per competition, 3×3. Faster is higher — the axis is the right way up.
The story so far
- 12 Jan 2025First sub-10 3×3: 9.92 at Chongqing New Year 2025.
- 30 Dec 2017Three personal bests in one day at Chongqing Open 2017.
- 29 Apr 2017Six personal bests in one day at Chengdu Open 2017.
- 1 May 2016First competition: Chengdu Open 2016. A 13.49 3×3 single to start from.
Competitions
- Chongqing New Year 2025 · 12 Jan 2025 — 2 personal bests set
- Chengdu Open 2018 · 29 Apr 2018
- Chongqing Open 2017 · 30 Dec 2017 — 3 personal bests set
- Chengdu Open 2017 · 29 Apr 2017 — 6 personal bests set
- Chengdu Open 2016 · 1 May 2016 — 1 personal best set
Reading this page: a single is one solve's time · an average is the middle three of five solves, best and worst discarded · a PB is a personal best · a DNF (did not finish) is an attempt with no valid result: a popped piece, an unsolved face, an over-limit memorisation · top X% compares against everyone ever ranked in that event, which is fairer than raw rank because event pools differ tenfold.
The circuit
The people whose scorecards keep turning up next to his.
- Fangrui Zeng (曾方锐) — met in 25 rounds, finished ahead 3 times
- Jibo Zhao (赵吉波) — met in 23 rounds, finished ahead 5 times
- Jiazhou Li (李佳洲) — met in 17 rounds, finished ahead 8 times
Next targets
- A sub-8 3×3 single — 7,931 people have one; it is 1.92 away.
- A sub-30 4×4 single — 2,388 people have one; it is 7.08 away.
Targets move as he improves.